On May 8, 12:07 am, MRAB <goo...@mrabarnett.plus.com> wrote:
> def compound_filter(token_stream):
> stream = lowercase_token(token_stream)
> stream = remove_boring(stream)
> stream = remove_dupes(stream)
> for t in stream(t):
> yield t
The last loop is superfluous. You can just do::
def compound_filter(token_stream):
stream = lowercase_token(token_stream)
stream = remove_boring(stream)
stream = remove_dupes(stream)
return stream
which is simpler and slightly more efficient. This works because from
the caller's perspective, a generator is just a function that returns
an iterator. It doesn't matter whether it implements the iterator
itself by containing ``yield`` statements, or shamelessly passes on an
iterator implemented elsewhere.
--
http://mail.python.org/mailman/listinfo/python-list
